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RF1211D 데이터시트 PDF




RF Monolithics에서 제조한 전자 부품 RF1211D은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 RF1211D 기능
기능 SAW Filter
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RF1211D 데이터시트, 핀배열, 회로
www.DataSheet4U.com
® RF1211D
• Ideal Front-End Filter for Domestic Wireless Receivers
• Low-Loss, Coupled-Resonator Quartz Design
• Simple External Impedance Matching
• Complies with Directive 2002/95/EC (RoHS) Pb
The RF1211D is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to pro-
vide front-end selectivity in 315.0 MHz receivers. Receiver designs using this filter include superhet with
10.7 MHz or 500 kHz IF, direct conversion and superregen. Typical applications of these receivers are wire-
less remote-control and security devices (especially for automotive keyless entry) operating in the USA
under FCC Part 15, in Canada under RSS-210, and in Italy
315.0 MHz
SAW Filter
This coupled-resonator filter (CRF) uses selective null placement to provide suppression, typically greater
than 40 dB, of the LO and image spurious responses of superhet receivers with 10.7 MHz IF. RFM’s ad-
vanced SAW design and fabrication technology is utilized to achieve high performance and very low loss with
simple external impedance matching.
Electrical Characteristics
SM3838-8 Case
3.8 x 3.8
Characteristic
Center Frequency at 25°C
Insertion Loss
Absolute Frequency
3 dB Bandwidth
Rejection Attenuation: (relative to ILmin)
10 - 295 MHz
295 - 305 MHz
305 - 310 MHz
310 - 313 MHz
313 - 314 MHz
316 - 320 MHz
320 - 325 MHz
325 - 335 MHz
335 - 600 MHz
600 - 1000 MHz
Sym
fc
ILMIN
BW3
Notes
1, 2, 3
1, 3
1, 3
1, 3
Minimum
314.85
500
46
41
27
17
7
20
15
43
55
55
Typical
315.00
1.6
600
51
46
30
20
10
24
18
48
60
60
Maximum
315.15
2.5
800
Temperature
Freq. Temp. Coefficient
Frequency Aging
Absolute Value during the First Year
Impedance @ fc
Input ZIN=RINllCIN
Output ZOUT=ROUTllCOUT
Lid Symbolization (Y=year WW=week S=shift)
Standard Reel Quantity
Reel Size 7 Inch
Reel Size 13 Inch
FTC
lfAl
ZIN
ZOUT
5
1
9
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
0.032
10
5.0// 2.2pf
9.3// 1.7pf
476 // YWWS
500 Pieces/Reel
3000 Pieces/Reel
Units
MHz
dB
kHz
dB
ppm/
°C2
ppm/yr
Notes:
1. Unless noted otherwise, all measurements are made with the filter installed in the specified test fixture which is connected to a 50 test system with
VSWR 1.2:1. The test fixture L and C are adjusted for minimum insertion loss at the filter center frequency, fc. Note that insertion loss and band-
width and passband shape are dependent on the impedance matching component values and quality.
2. The frequency fc is defined as the midpoint between the 3dB frequencies.
3. Where noted specifications apply over the entire specified operating temperature range of -40°C to +90°C.
4. The turnover temperature, TO, is the temperature of maximum (or turnover) frequency, fo. The nominal frequency at any case temperature, Tc, may
be calculated from: f = fo [1 - FTC (To - Tc)2].
5. Frequency aging is the change in fc with time and is specified at +65°C or less. Aging may exceed the specification for prolonged temperatures
above +65°C. Typically, aging is greatest the first year after manufacture, decreasing significantly in subsequent years.
6. The design, manufacturing process, and specifications of this device are subject to change.
7. One or more of the following U.S. Patents apply: 4,54,488, 4,616,197, and others pending.
8. All equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sale.
9. Tape and Reel Standard Per ANSI / EIA 481.
RF Monolithics, Inc. Phone: (972) 233-2903
Fax: (972) 387-8148
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
http://www.rfm.com
RF1211D-020205
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